// 模拟龟兔赛跑
public class Race implements Runnable{

    private String winner;

    @Override
    public void run() {

        for (int i = 0; i <= 100; i++) {
            // first charge whether finish
            boolean flag=isGameOver(i);
            if(flag)
                break;
            // 模拟兔子睡觉（延时）
            if(Thread.currentThread().getName().equals("兔子")&&i%10==0){
                try {
                    Thread.sleep(5);
                } catch (InterruptedException e) {
                    throw new RuntimeException(e);
                }
            }

            System.out.println(Thread.currentThread().getName()+"-->跑了"+i+"步");
        }
    }
    private boolean isGameOver(int step){
        if(winner!=null){
            return true;
        }else{
            if(step>=100){
                winner=Thread.currentThread().getName();
                System.out.println("The winner is "+winner);
                return true;
            }
        }
        return false;
    }
    public static void main(String[] args) {
        Race race=new Race();

        new Thread(race,"兔子").start();
        new Thread(race,"乌龟").start();

    }
}
